plate boundaries
DESCRIPTION
Plate Boundaries. Based on Michigan GLCEs for a 6 th grade audience. What are plates?. The earth’s crust (also called the lithosphere ) is broken up into many “puzzle pieces”. These puzzle pieces are called tectonic plates. - PowerPoint PPT PresentationTRANSCRIPT
Plate Boundaries
Based on Michigan GLCEs for a 6th grade audience
What are plates?
The earth’s crust (also called the lithosphere) is broken up into many “puzzle pieces”.
These puzzle pieces are called tectonic plates.
The plates are constantly moving over the liquid mantle of the earth. (On average, plates move about 2 cm per year.)
Three Types of Boundaries
Plate boundaries are named for the way that they move.
There are three types of boundaries; convergent, divergent, and transform. Convergent plates move TOWARD each other. Divergent plates move AWAY from each other. Transform plates SLIDE past each other.
Map of the world’s plate boundaries
Convergent Plates
Convergent plates move TOWARD each other.
They can cause the formation of ocean trenches, mountain ranges and sometimes, volcanoes.
Divergent Boundaries
Divergent plates move AWAY from each other.
They can cause the formation of mid-ocean ridges.
Transform Boundaries
Transform boundaries SLIDE past one another.
Most often the friction created by the rock sliding back and forth results in earthquakes.
One of the most famous transform boundaries has created the San
Andreas Fault in California.
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What are the three types of plate boundaries?
Away, toward, past
Mountains, volcanoes, earthquakes
Convergent, divergent, transform
Convergent, transfer, driven
What way do convergent boundaries move?
Toward each other
Away from each other
Past each other
What way do divergent boundaries move?
Toward each other
Away from each other
Past each other
What way do transform boundaries move?
Toward each other
Away from each other
Past each other
Volcanoes are usually caused by…
Transform boundaries
Divergent boundaries
Convergent boundaries
Mid-ocean ridges are usually a result of a …
Divergent boundary
Transform boundary
Convergent boundary
Earthquakes occur when tension in the rocks builds up at a …
Divergent boundary
Convergent boundary
Transform boundary
WELL DONE!
